transitions

Does anyone have experience with relevant Python libraries? I see a lot on Github but can't tell which is better. For classical Hierarchical FSMs my go to is transitions: https://github.com/pytransitions/transitions

BTW, did you check this? https://github.com/pytransitions/transitions/blob/master/exa...

I've used https://github.com/pytransitions/transitions in production python systems. It worked great but the system was fairly simple and wasn't changed often. In my opinion, it's nicer when the state machine can be defined as configuration (in XML or whatever) and then generate the code. Unfortunately that's not possible with vanilla pytransitions, but I suppose you could build a layer on top of it.

In my experience python gives the best results when you add a little bit of computer science to the mix. It is well within reason to use state machines[0] and constraint programming[1] libraries all from within python, no real need for an extra language. [0] https://github.com/pytransitions/transitions [1] https://pypi.org/project/python-constraint

No Rust, but here's a Python implementation that I have built on top of before: https://github.com/pytransitions/transitions You add the concept of finite "triggers", where [state i] + [trigger result j] always takes you to [new state](which could be the same state if you want) Triggers are just functions where anything could be happening - coin flip, API call, but they return one of an enumerated set of results so the machine can always use their result to go to another state.

In case you're using Python, I can't recommend this library enough - https://github.com/pytransitions/transitions . An absolute pleasure to work with.